Amblyosyllis Grube, 1857 (redescription)
Amblyosyllis formosa (Claparède, 1863) accepted as Amblyosyllis spectabilis (Johnston in Baird, 1861) (additional source)
Amblyosyllis madeirensis Langerhans, 1879 (redescription)
Anoplosyllis Claparède, 1868 (redescription)
Anoplosyllis edentula Claparède, 1868 (redescription)
Autolytinae Langerhans, 1879 (additional source)
Autolytus aurantiacus (Claparède, 1868) accepted as Proceraea aurantiaca Claparède, 1868 (source of synonymy)
Brania Quatrefages, 1866 (redescription)
Brania arminii (Langerhans, 1881) (redescription)
Brania clavata (Claparède, 1863) accepted as Salvatoria clavata (Claparède, 1863) (source of synonymy)
Brania limbata (Claparède, 1868) accepted as Salvatoria limbata (Claparède, 1868) (source of synonymy)
Brania pusilla (Dujardin, 1851) (redescription)
Brania swedmarki Gidholm, 1962 accepted as Salvatoria swedmarki (Gidholm, 1962) (new combination reference)
Dioplosyllis Gidholm, 1962 (redescription)
Dioplosyllis cirrosa Gidholm, 1962 (redescription)
Ehlersia Quatrefages, 1866 accepted as Syllis Lamarck, 1818 (source of synonymy)
Ehlersia cornuta (Rathke, 1843) accepted as Syllis cornuta Rathke, 1843 (source of synonymy)
Ehlersia ferrugina Langerhans, 1881 accepted as Paraehlersia ferrugina (Langerhans, 1881) (new combination reference)
Ehlersia ferrugina Langerhans, 1881 accepted as Paraehlersia ferrugina (Langerhans, 1881) (source of synonymy)
Ehlersia garciai (Campoy, 1982) accepted as Syllis garciai (Campoy, 1982) (source of synonymy)
Ehlersia nepiotoca Caullery & Mesnil, 1916 (source of synonymy)
Erinaceusyllis San Martín, 2003 (original description)
Erinaceusyllis erinaceus (Claparède, 1863) (additional source)
Eurysyllis Ehlers, 1864 (redescription)
Eurysyllis tuberculata Ehlers, 1864 (redescription)
Eusyllinae Malaquin, 1893 (additional source)
Eusyllis Malmgren, 1867 (redescription)
Eusyllis assimilis Marenzeller, 1875 (additional source)
Eusyllis blomstrandi Malmgren, 1867 (redescription)
Eusyllis lamelligera Marion & Bobretzky, 1875 (redescription)
Exogone Örsted, 1845 (redescription)
Exogone (Exogone) Örsted, 1845 (basis of record)
Exogone (Exogone) dispar (Webster, 1879) accepted as Exogone dispar (Webster, 1879) (additional source)
Exogone (Exogone) naidina Örsted, 1845 accepted as Exogone naidina Örsted, 1845 (redescription)
Exogone (Exogone) verugera (Claparède, 1868) accepted as Exogone verugera (Claparède, 1868) (redescription)
Exogone (Parexogone) Mesnil & Caullery, 1918 represented as Parexogone Mesnil & Caullery, 1918 (taxonomy source)
Exogone (Parexogone) hebes (Webster & Benedict, 1884) accepted as Parexogone hebes (Webster & Benedict, 1884) (redescription)
Exogoninae Langerhans, 1879 (additional source)
Haplosyllis spongicola (Grube, 1855) (additional source)
Hesiosyllis Wesenberg Lund, 1950 accepted as Pionosyllis Malmgren, 1867 (source of synonymy)
Hesiosyllis enigmatica Wesenberg Lund, 1950 accepted as Pionosyllis nidrosiensis (Bidenkap, 1907) (new combination reference)
Langerhansia Czerniavsky, 1881 accepted as Syllis Lamarck, 1818 (source of synonymy)
Langerhansia cornuta (Rathke, 1843) accepted as Syllis cornuta Rathke, 1843 (source of synonymy)
Myrianida brachycephala (Marenzeller, 1874) (basis of record)
Myrianida edwarsi (Saint Joseph, 1887) (redescription)
Myrianida inermis (Saint Joseph, 1887) (redescription)
Myrianida prolifera (O.F. Müller, 1788) (redescription)
Myrianida quindecimdentata (Langerhans, 1884) (redescription)
Myrianida rubropunctata (Grube, 1860) (basis of record)
Nudisyllis divaricata (Keferstein, 1862) (redescription)
Nudisyllis pulligera (Krohn, 1852) (redescription)
Odontosyllis Claparède, 1863 (redescription)
Odontosyllis ctenostoma Claparède, 1868 (redescription)
Odontosyllis fulgurans (Audouin & Milne Edwards, 1833) (redescription)
Odontosyllis gibba Claparède, 1863 (redescription)
Opisthodonta Langerhans, 1879 (redescription)
Palposyllis Hartmann-Schröder, 1977 (redescription)
Palposyllis prosostoma Hartmann-Schröder, 1977 (redescription)
Paraehlersia San Martín, 2003 (original description)
Paraehlersia ferrugina (Langerhans, 1881) (redescription)
Parapionosyllis Fauvel, 1923 (redescription)
Parapionosyllis brevicirra Day, 1954 (redescription)
Parapionosyllis minuta (Pierantoni, 1903) (redescription)
Pionosyllis Malmgren, 1867 (redescription)
Pionosyllis enigmatica (Wesenberg Lund, 1950) accepted as Pionosyllis nidrosiensis (Bidenkap, 1907) (basis of record)
Pionosyllis lamelligera Saint Joseph, 1887 accepted as Synmerosyllis lamelligera (Saint-Joseph, 1887) (redescription)
Pionosyllis longocirrata Saint-Joseph, 1887 accepted as Opisthodonta longocirrata (Saint-Joseph, 1887) (redescription)
Pionosyllis serrata Southern, 1914 accepted as Nudisyllis pulligera (Krohn, 1852) (source of synonymy)
Pionosyllis weismanni Langerhans, 1879 accepted as Brevicirrosyllis weismanni (Langerhans, 1879) (additional source)
Plakosyllis Hartmann-Schröder, 1956 (redescription)
Plakosyllis brevipes Hartmann-Schröder, 1956 (redescription)
Proceraea picta Ehlers, 1864 (redescription)
Procerastea Langerhans, 1884 (additional source)
Procerastea halleziana Malaquin, 1893 (redescription)
Procerastea nematodes Langerhans, 1884 (redescription)
Prosphaerosyllis San Martín, 1984 (additional source)
Prosphaerosyllis campoyi (San Martín, Acero, Contonente & Gómez, 1982) (new combination reference)
Prosphaerosyllis tetralix (Eliason, 1920) (redescription)
Pseudosyllis Grube, 1863 (source of synonymy)
Pseudosyllis brevipennis Grube, 1863 (source of synonymy)
Salvatoria McIntosh, 1885 (redescription)
Salvatoria clavata (Claparède, 1863) (redescription)
Salvatoria limbata (Claparède, 1868) (redescription)
Salvatoria swedmarki (Gidholm, 1962) (redescription)
Sphaerosyllis Claparède, 1863 (additional source)
Sphaerosyllis bulbosa Southern, 1914 (redescription)
Sphaerosyllis hystrix Claparède, 1863 (redescription)
Sphaerosyllis pirifera Claparède, 1868 (redescription)
Sphaerosyllis taylori Perkins, 1981 (redescription)
Sphaerosyllis tetralix Eliason, 1920 accepted as Prosphaerosyllis tetralix (Eliason, 1920) (new combination reference)
Sphaerosyllis thomasi San Martín, 1984 (redescription)
Streptodonta pterochaeta (Southern, 1914) (additional source)
Streptosyllis Webster & Benedict, 1884 (redescription)
Streptosyllis bidentata Southern, 1914 (redescription)
Streptosyllis websteri Southern, 1914 (redescription)
Syllidae Grube, 1850 (taxonomy source)
Syllidae Grube, 1850 (identification resource)
Syllides Örsted, 1845 (redescription)
Syllides bansei Perkins, 1981 (redescription)
Syllides benedicti Banse, 1971 (redescription)